Gix's Command is a rare Sorcery card from The Brothers' War Promos (PBRO), collector number 97p. Current market price: $0.72 (foil $1.79), TCGplayer market prices via Scryfall.
Choose two — • Put two +1/+1 counters on up to one creature. It gains lifelink until end of turn. • Destroy each creature with power 2 or less. • Return up to two creature cards from your graveyard to your hand. • Each opponent sacrifices a creature with the greatest power among creatures they control.